My friend has a 2003 Ranger Edge with 4.0 V6. The truck runs great, but the check engine light is on, so it won't pass inspection. I read the codes and got these two, P0171 and P0174. They indicate that both banks are lean. Does anyone know what might be causing this? Is it bad O2 sensors?
__________________ 1995 F-150 XLT 2WD 5.0 4R70W 3.55 LS (awaiting 5.8 swap)
1965 Mustang 302 T5
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